Active NPI
Aida Esther Tossas, RN
- Registered Nurse
- San Juan, PR
National Provider Identifier
1932304227
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Registered Nurse
- License
- 19142
- Practice address
- Pediatric University Hospital Third Floor Area C
Medical Center
San Juan, PR 00936-0000 - Phone
- (787) 777-3535
- Fax
- (787) 764-7004
- NPI assigned
- Jun 18, 2007
- Sex
- Female
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Registered Nurse | 163W00000X | 19142 | PR | Primary |
Addresses
Primary practice location
Pediatric University Hospital Third Floor Area C
Medical Center
San Juan, PR 00936-0000
Mailing address
Edif. K Apt. K 202
Vista Serena
Trujillo Alto, PR 00976-0000
Phone (939) 642-1918
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 19142 | Other | PR | REGISTER NURSE |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
- Credentials
- Registered Nurse
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 19142 | PR | MD | Registered Nurse |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1182124800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1786233600000",
"number": "1932304227",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "EDIF. K APT. K 202",
"address_2": "VISTA SERENA",
"city": "TRUJILLO ALTO",
"state": "PR",
"postal_code": "009760000",
"telephone_number": "939-642-1918",
"fax_number": "787-764-7004"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "PEDIATRIC UNIVERSITY HOSPITAL THIRD FLOOR AREA C",
"address_2": "MEDICAL CENTER",
"city": "SAN JUAN",
"state": "PR",
"postal_code": "009360000",
"telephone_number": "787-777-3535",
"fax_number": "787-764-7004"
}
],
"practiceLocations": [],
"basic": {
"last_name": "TOSSAS",
"first_name": "AIDA",
"middle_name": "ESTHER",
"name_prefix": "Mrs.",
"credential": "RN",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2007-06-18",
"last_updated": "2026-08-09",
"status": "A"
},
"taxonomies": [
{
"code": "163W00000X",
"taxonomy_group": "",
"desc": "Registered Nurse",
"state": "PR",
"license": "19142",
"primary": true
}
],
"identifiers": [
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "REGISTER NURSE",
"identifier": "19142",
"state": "PR"
}
],
"endpoints": [],
"other_names": []
}
Other providers in San Juan, PR
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 9, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.